Reasoning Traps
📋 What it is
Common reasoning traps include assuming the exception is the rule, and confusing “likely” with “certain”.
🗣️ Coach says
Even careful thinkers fall for traps. “I saw one rude tourist, so they’re all rude” (one case ≠ the rule). “It probably won’t rain, so it definitely won’t” (likely ≠ certain). Knowing the trap by name is your best defence.
🧠 Memory hook
One example isn’t the rule. Likely isn’t certain. Name the trap to escape it.
😂 Giggle
Why was the syllogism so proud of itself?
Because all its premises led to a valid conclusion!
😲 Whoa!
Casinos are built on people confusing “unlikely” with “impossible” — a rare win FEELS due, but each spin is independent; the trap is in your head, not the machine.
✅ Quick check: “It hasn’t rained in 10 days, so it definitely won’t rain today.” What’s the trap?
Say your answer out loud first — then reveal.
Confusing likely with certain — past dry days don’t guarantee today; each day’s weather is its own event.
Treating a probability as a certainty is a classic reasoning trap.
🪄 Trick question: “My first two guesses were both odd, so the next MUST be odd too.” Trap?
Careful — think it through, then reveal.
Yes — two cases don’t make a rule, and if the numbers are random the next isn’t affected at all (gambler’s trap).
A small sample and independent events both defeat this reasoning.
🧪 Try it! (2 minutes)
Catch yourself (or a friend) turning “probably” into “definitely” today. Rewrite it honestly.